Lake Itasca

Lake Itasca, lake regarded as the main source of the Mississippi River, in Clearwater county, northwestern Minnesota, U.S. The lake, of glacial origin, covers an area of 1.7 square miles (4.4 square km) and has a maximum depth of 40 feet (12 metres). From the lake’s surface, which is 1,475 feet (450 metres) above sea level, the Mississippi flows southward 2,350 miles (3,780 km) to the Gulf of Mexico.

The fur trader William Morrison may have been the first white man to visit the lake in 1803 or 1804. It was explorer and ethnologist Henry Rowe Schoolcraft, however, who proposed Lake Itasca as the true source of the Mississippi in 1832. French explorer Joseph Nicollet surveyed the area in 1836 and confirmed Schoolcraft’s claim. Some geologists, however, have believed that other glacial lakes in the region also supply the headwaters of the river.

Schoolcraft is generally credited with having coined the name Itasca from the Latin words veritas (“truth”) and caput (“head”). Native American legend, however, mentions I-tesk-ka, the daughter of Hiawatha, whose tears of anguish at being spirited away to the netherworld reputedly formed the source of the Mississippi.

The 50-square-mile (130-square-km) Itasca State Park was established around the Itasca basin in 1891. The lake is stocked with game fish and is popular with boaters.

Click anywhere inside the article to add text or insert superscripts, subscripts, and special characters.
You can also highlight a section and use the tools in this bar to modify existing content:

Add links to related Britannica articles!
You can double-click any word or highlight a word or phrase in the text below and then select an article from the search box.
Or, simply highlight a word or phrase in the article, then enter the article name or term you'd like to link to in the search box below, and select from the list of results.

Note: we do not allow links to external resources in editor.
Please click the Web sites link for this article to add citations for
external Web sites.